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@kyleturner
kyleturner / Remove Submodule
Created January 5, 2012 01:07
How to remove a submodule from a Github project
To remove a submodule you need to:
Delete the relevant line from the .gitmodules file.
Delete the relevant section from .git/config.
Run git rm --cached path_to_submodule (no trailing slash).
Commit and delete the now untracked submodule files.
@drnic
drnic / Guardfile
Created April 5, 2012 06:45
An example Guardfile with the works for a Rails app
guard 'rspec', :version => 2 do
watch(%r{^spec/.+_spec\.rb$})
watch(%r{^lib/(.+)\.rb$}) { |m| "spec/lib/#{m[1]}_spec.rb" }
watch('spec/spec_helper.rb') { "spec" }
# Rails example
watch(%r{^app/(.+)\.rb$}) { |m| "spec/#{m[1]}_spec.rb" }
watch(%r{^app/(.*)(\.erb|\.haml)$}) { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
watch(%r{^app/controllers/(.+)_(controller)\.rb$}) { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
watch(%r{^spec/support/(.+)\.rb$}) { "spec" }
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@mikhailov
mikhailov / 0. nginx_setup.sh
Last active November 24, 2023 09:05
NGINX+SPDY with Unicorn. True Zero-Downtime unless migrations. Best practices.
# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies.
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
#
# Deployment structure
#
# SERVER:
# /etc/init.d/nginx (1. nginx)
# /home/app/public_html/app_production/current (Capistrano directory)
#
@basuke
basuke / drive.py
Created September 2, 2012 22:49
Create the GPX file from origin and destination using the GoogleMap Direction API. You can use this output for simulate the location apps in Xcode.
#
# python drive.py "origin" ["waypoint" ... ] "destination"
#
# i.e. python drive.py "Union Square, San Francisco" "Ferry Building, San Francisco" 'Bay Bridge' SFO
import sys, json, urllib2, md5, os.path, pprint
from math import radians, sin, cos, atan2, pow, sqrt
from urllib import quote_plus
from xml.sax.saxutils import escape
from optparse import OptionParser
@debasishg
debasishg / gist:8172796
Last active March 15, 2024 15:05
A collection of links for streaming algorithms and data structures

General Background and Overview

  1. Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
  2. Models and Issues in Data Stream Systems
  3. Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
  4. Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
  5. [Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep=rep1&t
@simme
simme / app.js
Last active May 16, 2019 05:59
Gulp file for an Ember project using bower and browserify.
// Load Ember into the global scope by requiring it
require('ember');
// Go have fun
var app = Ember.Application.create();
@matsuda
matsuda / NSData+AES.h
Created February 25, 2014 07:14
Objective-C code for encrypt and decrypt by AES-128 encryption.
/**
http://mythosil.hatenablog.com/entry/20111017/1318873155
http://blog.dealforest.net/2012/03/ios-android-per-aes-crypt-connection/
*/
@interface NSData (AES)
- (NSData *)AES128EncryptedDataWithKey:(NSString *)key;
- (NSData *)AES128DecryptedDataWithKey:(NSString *)key;
- (NSData *)AES128EncryptedDataWithKey:(NSString *)key iv:(NSString *)iv;
@dhh
dhh / Basecamp-DDOS.md
Last active August 30, 2023 09:33
Basecamp is under network attack (DDoS)

Basecamp was under network attack

The attack detailed below has stopped (for the time being) and almost all network access for almost all customers have been restored. We're keeping this post and the timeline intact for posterity. Unless the attack resumes, we'll post a complete postmortem within 48 hours (so before Wednesday, March 26 at 11:00am central time).

Criminals have laid siege to our networks using what's called a distributed denial-of-service attack (DDoS) starting at 8:46 central time, March 24 2014. The goal is to make Basecamp, and the rest of our services, unavailable by flooding the network with bogus requests, so nothing legitimate can come through. This attack was launched together with a blackmail attempt that sought to have us pay to avoid this assault.

Note that this attack targets the network link between our servers and the internet. All the data is safe and sound, but nobody is able to get to it as long as the attack is being successfully executed. This is like a bunch of people

@traviskaufman
traviskaufman / jasmine-this-vars.md
Last active September 19, 2022 14:35
Better Jasmine Tests With `this`

Better Jasmine Tests With this

On the Refinery29 Mobile Web Team, codenamed "Bicycle", all of our unit tests are written using Jasmine, an awesome BDD library written by Pivotal Labs. We recently switched how we set up data for tests from declaring and assigning to closures, to assigning properties to each test case's this object, and we've seen some awesome benefits from doing such.

The old way

Up until recently, a typical unit test for us looked something like this:

describe('views.Card', function() {